Machine for use in the manufacture of shoes



0a. 26, 1943. R. H. LAWSON 2,332,651

MACHINE FOR USE IN THE MANUFACTURE OF SHOES Filed Jan. 19, 1942 5Sheets-Sheet 1 Oct. 26, 1943. R. H. LAWSON 2,332,651

MACHINE F OR USE IN THE'MANUFACTURE OF SHOES lfiled Jan. 19, 1942 5Sheets-Sheet R. H. LAWSON Oct. 26, 1943.

MACHINE FOR USE IN THE MANUFACTURE OF SHOES 5 Sheets-Sheet 3 Filed Jan.19, 1942 Oct. 26, 1943. R. H. LAWSON MACHINE FOR USE-IN THE MANUFACTUREOF SHOES 5 Sheets-Sheet 4 Filed Jan. 19, 1942 Patented 0st. 25, 1943anger.

UsE IN THE MANUrAcTpRE .j or snons MACHINE FOR Robert H. Lawson,Beverly, Mass 'assignornto United Shoe Machinery Corporation,Flemington, N. 3., a corporation of New Jersey Application January 19,1942, Serial No. 427,316 Y 42 Claims.

The present invention relates to a machine for use in the manufacture ofboots and shoes of the general type which comprises devices for per"forming an operation along the upturned bot-. tom of a knee length bootor high-cut shoe and to aboot or high-cut shoe supporting jack, theposition of which with relation to the operating devices is changed asthe point of operation of said devices is transferred along suchfootwear, further reference to shoes, unless otherwise specified, beingintended as inclusive of knee length and other forms of boots. Theseveral features of the invention are herein disclosed in-an automaticside lasting machine and are intended primarily as improvements in theconstruction of the jack and of the mechanism, for changing the positionof the jack in the machine of in ventors U. S. Letters Patent No.2,201,866 of May 21, 1940. It is to be understood, however, thatvcertain features of the present invention are not limited to use in theparticular machine of.

the patent above referredto or to those of the general type to whichthis machine belongs, but are advantageous when used with other types ofmachines for manufacturing or processing shoes.

In the machine of inventors patent referred to, the jack comprises a toerestand a relatively movable heel post mounted on a slide for clamping ashoe by movement towards the toe 3 rest. The length of the heel post andits mounting on the slide is such that in order to clamp a shoe having ahigh-cut upper, it is necessary to roll back the upper and to takespecial precautions in guarding it from contact with the moving slideand other operating parts of the jack. With a riding boot having a fullknee of a jack constructed to receive the leg in fully extendedcondition.

One object of the present invention is to pm vide in amachine foroperating uponiull length riding boots and high-cut shoes, a novel andimproved form of jack which will enable such footwear to be applied tothe heelpost on the jack without rolling back the leg or otherwiseflexing it from its natural shape. Another object of the invention is toimprove the construction of a shoe supporting jack having a pivotalmounting on a jack supporting frame, the axis of which mounting extendslengthwise of and in close proximity to thebottom of the shoe on thejack so that shoes having relatively high-cut uppers may be applied tothe jackand operated upon successfully without'in'terfering with themovements of the jack about its pivotal mounting on the jack frameor-requiring complete re-design of the machine with which it is to beemployed as a result of a change of dimensions in the jack. 1

In addition to connection on the frame being located substanlength legportion, it is extremely dilficult to roll back the leg sufficiently toclear the heel,

post supporting slide on the jack of the patent.

.Rolling back the leg of a boot also has unclesirable results inwrinkling the material subiecting it to strain or other damage.

To enable both margins along the upturned:

bottom of a lasted shoe to be pressed against'two separate sets oflasting devices at the same time,

the jack of the patented machine has a pivotal mounting on a jacksupporting frame, the axis of which mounting extends in close proximityto the bottom of a shoe being operated upon be-.

tween the sets of lasting devices lengthwise of the shoe. A leg of ariding boot is of such length as to require a'substantial increase oflength in the heel post, as well as an entire re arrangement of thislengthwise pivotal mounting ther object an improvement in general construction and arrangement for a jack frame and properly to the operatingdevices. ented construction, the transverse pivotal con- "tiallybelowthe shoe. During operation on a shoe, the angular position of the jackframe is changed about its transverse pivotal connection with thesupporting structure to present the shoe In. the pat nection between thejack frame and supporting structure is located directly beneath and inclose proximity to the shoe to enable the requisite angular positioningmovements to be imparted to the jack frame and the shoe thereon. The legof a full length riding boot extends sufficiently be low a last on whichit is mounted, as compared to the distance between the heel post and thetransverse pivotal connection on the frame of the patented jack, tooverlap the location of the pivotal connection, as well as other movingportions of the jack supporting structure. As a result, furthersubstantial departures from the general construction and arrangement'ofthe patented jack frame and supporting structure are necessary to clearthe space surrounding the downwardly extending leg of a boot on thejack.

The present invention, therefore, has for a fur;

l the pivotal mounting extending lengthwise of a shoe, thejack frame ofinventors patent is pivotally connected to a base included acsaecilocated on the frame sufficiently to one side and above the lowermostleg receiving portions of a last pin and heel post constructed tosupport a full length riding boot that the leg portion of the boot willnot be subject to damage nor the boot be restricted in itspositioningmovementsin any respect. In order to provide a frame andsupporting structure for a jack capable of accommodating a full lengthridingboot with the leg extended, which jack may be employedinterchangeably with the jack of the patented machine, the framesupporting structure of the jack, according to this feature of theinvention, is so arranged that full swinging movements in the jack frameare obtained about its pivotal con- I nection with the supportingstructure to present the shoe properly to the operatingdevices withoutobjectionable strains in the supportingstructure or the necessity forapplication of excessively heavy forces in the power drivenjackactuating mechanism. These results are obtained in spite ofrearrangement in the lengthwise pivotal mounting, and the changeinlocation of the pivotal connection between the frame and thesupporting structure, the same overall height of the jack and supportingstructure as in the patented machine being retained.

With the same overall height in the jack, it is possible to employ apower driven mechanism for actuating the jack frame about its point oftransverse'pivotal connection on'the supporting'structure which issubstantially the same as employed in the patented machine. Thesupporting-structure for the jack frame accordingto this feature of theinvention itself causes the frame automatically to be maintained in thesame angular relation about the transverse pivotal connection to thebase regardless of the movem'entof'the jack lengthwise of a shoe as theoperation progresses. By such construction, certain pattern cams in theactuating mechanism of the prior machin aresimplified, particularlythose for imparting the feeding movements to the shoe, and for changingthe angular position of the jack about its point of transverse pivotalconnection, each of these cams in the present machine having shapes forimparting particular movements without reference to the movementsimparted by the other. In the machine of the patent, each of these camsmust be modified to compensate for movements imparted by the other.

The means for enabling the jack frame to be held in substantially thesame angular relation to the supporting structure about the point oftransverse pivotal connection as the operationon the. shoe progressescomprises, in its illustrated form, a pair of interconnected linksdisposed at an angle to eachother between the frameand base, an upwardforce being exerted on one of the links to press the shoe bottom againstthe operating devices and a lever for imparting a.

feeding movement to the shoe being connected to move the other of saidlinks. The angular relation about the point of transverse pivotalconnection is maintained automatically between the jack frame and baseaccording to this feature by connecting rods extending between the frameand base and acting with the links to impart similar angular movementsof the frame whenever the angle of the base is changed. With the baseheld stationary and the feed lever moved,

the frame moves bodily as guided through e11 gagement of the shoe bottomby the operating devices, one of the links swinging about the transversepivotal connection on the frame and the other link acting to exert anupward pressure on the-jack to hold the shoe against the operatingdevices.

In the patented-machine, the pivotal mounting for the jack consists ofbearing members connected with the jack and supports it at both the toerest and heel post ends. Preferably the I lengthwisepivotal mountingbetween the jack frameand the jack of the present machine connects thetoe rest end only of the jack with the frame so that the heel post endof the jack is free from obstruction during all the positioningmovements of the shoe. In' the jackhereinafter described, a thrustmember is provided on the toe end of the jack acting against a similarmember on the frame to exert. an upward pressure onthe heel end of thejack in all positions of thejacl: relative to its lengthwise pivotalmounting on the frame and lengthwise retaining members also are providedbetween the thrustmembers and the lengthwise pivotal mounting forpreventing separation of the jack from the frame. Thus, thenecessity fora separate pivotal mountingat the-heel end of the jack is avoided. I

Other features. of the invention consist in'certain devices,combinations and arrangements, of parts hereinafter described andclaimedinclud ing improved shoe clamping devices in the jack andnovelmechanisms for releasing the shoe and resetting the clamping devices,the advantages of which will be. obvious from the following descriptiontaken in connection with the accompanying drawings, in which Fig. 1- isa view in right side elevation of an automatic side lasting machine andjack embodying the severalfeatures of the invention; Fig. 2 is asectional detail view on av somewhat enlarged scale taken through theplane of th jack illustrating the construction'of the supportingstructure; and the arrangement of the power driven actuating mechanismfor the ack; Fig. 3 is a sectional detail View on a still furtherenlarged scale of a portion of the jack illustrated in Fig; 2, showingthe positions of the parts with an unlasted high-cut riding boot clampedin operating position; Fig. 4 is a sectional view taken along the lineIV-IV of Fig. 3; Fig. 5 is a fragmentary view of the lowermostdownwardly extending portions of the toe rest and heel post, as viewedfrom the line VV Of' Fig. 2; Fig. 6 is a sectional detail view on anenlarged scale of the from the line VIVI of Fig. 2; Fig. 7 is a. furthersectional view of the jack actuating shaft taken along the line VII-VIIof Fig. 2; Fig. 8 is a detail sectional view of a pulley and cord clampon the jack actuating shaft; Fig. 9 is a detail w'ew on an enlargedscale of a slide and guide- Way included in the mechanism connected withthe ack actuating shaft; Fig. 10 is an enlarged separated perspectiveview of a cable clamp illustrated in Fig. 8; Fig. 11 isasectionalidetail view jack actuating shaft, as viewed of the heel postand last receiving pin thereon; Fig. 12 is a further enlarged plan viewof the last pin; Fig. 13 is a plan view, partly in section, of anunlasted shoe supported on the jack; Fig. 1l is a perspective view of aresetting lever for the jack; and Fig. 15 is a perspective view'of a toesupporting chute on the toe rest of the jack.

Except as hereinafter described, the machine illustrated in the drawingsis the same in all essential particulars as themachine disclosed ininventors Patent No. 2,201,866 above referred to.

The two lasting units of the machine include insole guiding presser feet2 and upper tensioning and securing devices 4 operated from ,a powerdriven cam shaft 5 and arranged as in the machine of inventors priorPatent No. 1,963,170 of June 19, 1934. The lasting units and cam shaftare mounted in a main frame 8 within the base of which are carriedsuitable power driven pattern shafts, one of which is indicated in Fig.2 at ill. Outside the main frame is a shoe supporting jack, the positionof which is changed by cams on the pattern shaft during operation on ashoe to present the upturned bottom surface of the shoe properly to thelasting units.

The jack of the prior machines comprises a toe rest and a heel postsupported in a cradle mounted for pivotal movement about an axisextending lengthwise of a shoe on the jack close to the bottom of theshoe. The cradle has a hooked or shouldered toe end gage pivotallymounted on the jack similar to the gage indicated at it? in theaccompanying drawings, and to clamp the shoe in position on the jackcradlathe heel post carries a last receiving pin projecting from a slidemounted in the cradle for movement towards and from the to rest. cradleengage both the toe and heel ends of the cradle and are mounted in aU-shaped jack frame having supporting structure in the form of asubstantially horizontally extending link and a vertical pivoted base.The arrangement is such that an upward force is exerted to press thebottom of a shoe against the two presser feet 2 of the lasting devicesoperating simultaneously along opposite sides of the upturned shoebottom and suitable positioning movements are imparted to the shoe bychanging the positions of the base and jack frame relatively to eachother as the operation progresses. A pivotal connection between the jackframe and the horizontal link in the supporting structure enables thejack to swing about an axis substantially below the jack cradleextending transversely to the length of the shoe.

The length of the last pin and the shape of the cradle in the priormachines are such that when a high-cut shoe is applied to the jack, thedownwardly extending leg portion of the upper 53 must be folded backover itself to clear the cradleand jack frame. Even if folded back, thebulk of a high-cut shoe upper presents a serious obstacle, theoperations on such classes of footwear being limited to this extent.

To enable satisfactory operations on a relatively high-cut boot, the legportion of which extends substantially beyond a supporting last M, thetoe rest of the jack in the present machine consists of a reversely bentarm is, extending downwardly sufficiently to clear the leg of thelargest sized riding or other type of boot to be operated upon and theheel post, indicated, at E5, is of substantially the same length, beinghingedly joined by a pin it to the lower end of .the toe restarm.

The jack, insteadof beingin cradle forrnypiv-j The pivots for supportingthe axis of the transverse shaft 28.

' pressure.

otally supported on both the toe rest and heel post ends, as in thepatented machines, is, in the machine of the present invention,supported to swing on a single pivot 2% having a roll 22 engaging acurved horizontal slot formed in a mounting block 24 fastened to theupper end of the toe rest arm 15. The axis of the pivot 29 extendslengthwise of the shoe in the jack and coincides substantially with theplane of the shoe bottom or extends in close proximity thereto, asdescribed more particularly in inventors Patent No. 1,999,298 of April30, 1935. To provide a clear space for the downwardly extending portionsof the toe rest and heel post while swinging about the axis of themounting pivot 26, the jack frame, indicated at 25, is substantiallysmaller than the U-shaped frame of the machines in the patents, being ofsufiicient size and strength to support the jack at the toe rest endonly and to provide bearing members for exerting an upward thrust on theheel post end of a shoe supported onv the jack.

The supporting structure of the jack frame 26 for enabling the presentjack to swing about an axis extending transversely to the length of theshoe includes a shaft 23 rotatably mounted in the jack frame to form apivotal connection between the frame and the supporting structure at apoint substantially above the lowermost portions of the toe rest andheel post. To avoid the necessity of employing a lengthwise pivotalmounting at the heel post end of the jack, the thrust bearing members ofthe jack frame 25 in the present machine comprise roll 38 (see Figs. 2and 3), rotatable on a vertical stud 32 threaded into a lug on the frameand a horizontally disposed plate 3 on the jack. The roll it is locatedon the frame at a point between the lengthwise pivot 29 and thetransverse pivotal connection of the supporting structure formed bytheshaft 28, the arrangement being such that it is unnecessary to extendthe jack frame downwardly to any substantial distance below the The roll36 is spaced as far as convenient from the lengthwise pivot 2'5 on theframe to provide suitable support against downward pressure exerted onthe roll through the shoe on the jack by the presser feet 2 of thelasting devices.

To retain the toe rest on the frame and prevent its separation from theroll 22 as a result of donward pressure of the presser feet 2, the upperend of the heel post between the thrust members and the pivot Ed hassecured to it a flat cross bar 36 (see Fig. l), the projecting portionsof which are engaged by balls 35 located within recesses-at the upperends of a pair of braces 4E! secured to side arms on the jack frame 26.In supporting the heel post end of the jack and preventing separation ofthe jack frame from the roll 22, the balls 38 and bar 36 act togetherwith the roll 30 and the thrust plate M to form a pressure resistingmechanical couple arranged in opposition to the forces exerted bythedownward As a means to insure proper movement of the shoe along thepresser feet as the jack. is moved towards the right, the pivot Elladjacent the roll 22 has a vertical pin projecting upwardly and carryinga second roll 42 which acts against a horizontal face on the mountingguide block 23.

The supporting structure for the jack frame in the machine of Patent No.2,201,866 comprises a basesimilar to that indicated at it provided withan upwardly extending arm 46 and a horizontally extending link similarto that indicated at 38 in the present drawings. In the jack supportingstructure of this patent, the jack frame is directly and pivotallyconnected to the right end of the link corresponding to the link it sothat in tipping the ends of the shoe about the presser feet 2 of thelasting devices to change the position of the shoe properly while beingpresented to the lasting devices, it is necessary to move the point ofpivotal connection between the jack frame and the supporting structure.With the toe rest arm is and heel post It extending downwardly toprovide space for the leg portion of a high-cut boot or shoe, as in thepresent jack, the weight of the parts, together with the weight of asupporting structure designed after the patented construction would besubstantially greater than that of the patented jack. Furthermore,because of the extra space required by the downwardly extending heelpost in a high-cut boot receiving jack, there is no available room for ajack base and arm of sufficient height to provide the requisite spacefor movements as the point of operation is transferred lengthwise of theshoe where the jack frame and base are connected by a single link.

The supporting structure for the jack frame according to an importantfeature of the present invention, is so arranged that the frame alwaysassumes the same angular position as the jack base when the point ofoperation is transferred lengthwise of a shoe on the jack even thoughthe arm at on the base is substantially shorter than the arm on .thebase of the jack in Patent No. 2,201,866. The present supportingstructure, in addition to the link 455, includes a vertical link 56disposed at an angle to the link 38 and connected at its lower end by ashaft 52 to the link 58 and at its upper end by the transverse pivotalconnecticn shaft 255 to the jack frame 23. Also connected between thebase 44 and the jack frame 26 are suitable connections for holding theframe and base in the same angular relation to each other, rgardless ofthe movement of the jack lengthwise of the boot or shoe thereon. Theseconnections consist of a horizontal rod 54 mounted at one end on a shaft56 in the arm it and at the other end pivotally connected with a lever58 rotatably supported on the shaft 52. The lever 53 also is pivotallyconnected with a substantially vertical rod 65, the upper end of whichis rotatable on a shaft 62 mounted in the jack frame 25. The connectingrods and lever form with the pair of links 43 and 5d two sets ofparallel linkages between the base and jack frame. When the jack frameis moved in a direction lengthwise of the boot or shoe as the operationis transferred along the shoe, the link swings about the shaft 52 andsupports th jack frame by an upward force imparted by the link so thatfore-shortening of the link as a result of movement of the jacklengthwise of the boot or shoe is compensated for by slight upwardmovements of the shaft 52 together with the right end of the link 4353,the connecting rods {it and Gil maintaining the upper end of the jackframe 25 in substantially parallel relation to the base and arm E5 atall times. For purposes of strength and lightness in the jack frame, thetoe rest, the heel post, the links, the connecting rods and the lever 53are in the form of hollow channel members with parallel flanges.

The power driven mechanism for pressing the jack frame upwardly to forcethe boot or shoe against the presser feet of the lasting units issimilar to that disclosed in Patent Nol 2,201,866.

This mechanism is actuated from a cam on one of the pattern cam shaftsinside the base of the machine. The upward pressure is transferred tothe jack supporting structure through a cord 62, the outer end of whichis fastened to a pin 64 on the connecting rod 54 and extends upwardlyover a pulley 68 rotatable on a shaft (i8 forming a pivotal connectionbetween and passing through the flanges of the arm d e and the link 28.From the pulley 66, the cord 62 passes downwardly beneath a pulley 1Grotatable on a shaft 72. From the pulley H3, the cord 62 passes axi-;ally through the pivotalconnection of the jack base 44 and the mainmachine frame 3, being connected to the operating parts within the basein a manner more clearly disclosed in Patent No. 2,201,866.

Before a shoe is applied to the jack, the toe rest and the heel post arein the positions indicated in 'Fig. 2 with the heel post separatedsufficiently from the toe rest to accommodate the largest size of shoecapable of being operated upon in the machine' At the upper end of theheel post is a last pin M (see Fig. 11), having a hollow shank slidablymounted in the heel post and normally spring-pressed into its highest.

raised position, a suitablet fixed stoppin 16 passing through a slot inthe last pin to limit the upward movement of the last pin. When a shoeis applied to the last pin, downward pressure on the last pin trips thejack, as hereinafter described. Tripping the jack causes the heel postto be moved yieldingly towardsthe toe restand the toe end of the shoe tobe urged yieldingly against an arcuate chute l8 on the toe rest similarto the chute of inventors Patent No. 2,252,325 of August 12, 1941. Thechute l8 acts to guide the toe of the shoe against the shoulder on the.toe end gage 82, as in the patent just referred to, but in the presentjack, no separate toe clamps are provided for raising the shoe againstthe shoulder or gripping it. To clamp the toe of a shoe in the presentjack, the chuteitself is raised. On the under side of the chute is acircular pad 79 arranged to be engaged by a block 88 having a tubularshank slidably mountedin the toe rest arm I 5 and acted upon by one'endof a coil spring 82 surrounding a pivot Mon the toe rest arm for thechute F8. The block is nor-, mally held depressed against the spring by,one end of a double acting'pivoted dog 85 having a notch within which atooth on the lower end of gage I2 is received. When engaged by the shoe,

the gage causes the dog to release the block momentarily and again tolock the block after the chute raises the shoe against the shoulder onthe end gage.

To urge the heel post l6 yieldingly towardsthe toe rest arm 15, thedownwardly extending channel shaped portion of the toe rest arm carriesa tension spring 85 stretched between a cross shaft 88 in the toe restand a pin 9Q on a vertical jack opening bar 92movably supported betweenthe flanges of the toe rest. Near its upper'end, the bar 92 is pivotallymounted on an arm 94 rotatable on the shaft 88 and at its lower end thebar is pivotally connected to a'triangular lever 96 fulcrumed on ashaft98 in the toe rest. Between the lever 98 and a shaft IDB located onthe heel post between its flanges andspaced somewhat. 1

from the pivot l8 between the heel post and toe rest arm is a curvedlink IE2 extending around the boot leg receiving space formed by thedownwardly extending portions of the heel'post and the toe rest. Thelink IM and one arm of the lever .lii act together as a toggle tomultiply the force exerted by the spring 86 in drawing the heel posttowards the toe rest. During separation of the heel post from the toerest, the link and lever arm move close to but do not quite reachposoitions in which their points of pivotal connection become aligned.Just before the positions of alignment are reached, the lever 96 engagesthe central flange of the downwardly extending channel portion in thetoe rest arm, thus limiting the separation. The arrangement is such thatthe force applied by the spring $6 to the heel post is increased with alarge-sized shoe over that with a small-sized shoe. With a small-sizedshoe, the force required to clamp the shoe in place is less than with alarger one because the position at which the presser feet of the lastingunits apply their pressures is nearer to the toe rest of the jack on asmall shoe and as a result, the components of forces tending to displacethe shoe are less. With relatively large displacement of the heel postfrom the toe rest with large-sized shoes, the forces exerted by thepresser feet on the shoe bottom have a greater tendency to separate theheel post from the toe rest and are accordingly resisted to increasedadvantage by the toggle connections 96, [82.

At the end of the lasting operation on a shoe, the heel post isseparated from the toe rest to enable a new shoe to be substituted forthe old one. Mechanism is provided for automatically separating the heelpost from the toe rest comprising power operated devices acting on thejack opening bar 92 in the toe rest arm l5. Above the jack opening barin the. toe rest arm, there is a lever lll i mounted on a pin m6 betweenthe flanges of the toe rest arm having pivotally connected to one arm adownwardly extending pawl Hi8. Surrounding the point of pivotalconnection between the pawl and the lever I64 is a coil spring Hi3tending toswing the pawl away from the upper end of the jack opening barinto a position indicated in Fig. 3. The pawl is formed with asubstantially vertical cam surface arranged to be engaged by a U-shapedarm of a jack actuating lever H2 fulcrumed on a pair of studs H4 in thejack frame. When first engaged by the jack actuating lever, the camsurface on the pawl causes the pawl to move towards the jack opening baruntil it reaches a position of substantial alignment with the bar.Further movement of the jack actuating lever presses a ledge on the pawldownwardly to move the pawl bodily against the upper end of the bar,causing it to be depressed and the jack to be opened. As the bar isdepressed, it rocks'the lever 95 and moves the link IE2 downwardly toswing the heel post away from the toe rest against the tension of spring36 (see Fig. 2). .When held in this position, the jack actuating leverholds the heel post in readiness to receive a new shoe.

Upon the application of downward pressure of a shoe against the last pinM, the pawl M38 is disengaged from the jack actuating lever 1 l2 and thejack opening bar is allowed to rise. Thus, the jack is tripped and theshoe clamped in operating position. The lower'end of the last pin 14 isconnected by a link 1 iii to a lever I it fulcrumed on the shaft iilflbetween the flanges of the heel post. The lever H3 also is connectedthrough a link lid to a tripping arm I22 having an up-v wardly extendingfinger located to contact a pin its in the pawl I88 when the pawl is injack opening position. Downward pressure on the last pin M causes theledge on the pawl to be moved out of engagement with the U"-shaped armof the jack actuating lever and to become disconnected therefrom. Assoon as this occurs, the jack opening bar 92 immediately is movedupwardly by the spring 86, and causes the jack to clamp the shoe.

To cause the chute l8to be reset whenever the jack is opened, the lever184 on which the pawl "38 is mounted is connected by a link 26 to achute resetting lever I28 acting in a manner similar to a correspondinglever for resetting the toe grips in the machines of the patentsreferred to. The chute resetting lever has a lug entering a recess inthe shank of the block beneath the spring 82. I

To move the jack actuating lever l l2 after each lasting operation hasbeen completed, the lever is pivotally connected through a link 13b toone corner of a slide box I32 fulcrumed at a second corner on a pivotI34 between the flanges of the jack frame 26. rolls I35 (Fig. 9) spacedto fit a sliding pitman rod I36 connected to a crank-arm I38 extendingfrom the hub of a pulley Mil rotatable about the shaft 28, the rodbeingrotatable on a crank pin l ll passing through the crank arm and thepulley. When the pitman is actuatedfit rocks the slide box I32 about itspivot I33 and actuates link I30 and lever H2.

Keyed to the hub of the pulley i i-ii is a sleeve 9-32 (see Fig. 6) alsosurrounding ie shaft 28 and forming a journal for hearings in the jackframe and supporting link Ell. The pulley is rotated by a cord Milextending downwardly b tween the flanges of the link 5!), around a pairof pulleys it on the shaft 52, a second pair of pulleys I 38 on theshaft 68 and a third pair of pulleys E58 on the shaft 12. From thepulleys -3, the ends of the cord extend axially of the pivotal mountinginside the jack base on the main frame of the machine and to suitablecam actuated drums inside the main frame, as disclosed in the priorpatents referred to. The shaft 23 also supports a cam N12 for shiftingthe jack relatively to the lengthwise mounting pivot 23 on the jackframe, as in the patents referred to.

For moving the jack to transfer the point of operation along the boot orshoe bottom, the jack frame 25 is pivotally connected through a feedlink i5 2 to a feed lever Hill fulcrumed on the machine frame andactuated by size adjustable mechanisms, as in inventors patents, from acam I58 on the pattern cam shaft ii). To swing the ends of the shoeabout a transverse axis passing through the point of operation of thelasting devices, the jack base 44 has a horizontally extending armengaging a cam ltd on the pattern car-n shaft iii. In the machine ofinventors patents above identified, the two cams which correspond tothose indicated at l58 and its are readily replaceable when the style ofthe shoe operated upon is changed. The mechanism actuated by these camsis such that whenever one of the cams is replaced, the other must alsobe replaced, since the cam Hit, commonly called the pitch cam, must becut with suitable compensation for the movements imparted by the.

feed cam 953. With the present jack supporting structure, it isunnecessary to replace both of these cams with every change in style ofshoe since the angular position of the jack base controls the angularposition of the jack frame, regardless of the operating positionlengthwise of a boot or shoe. Accordingly, it is unnecessary to cut thecam Hill with any character which is The slide box is provided with incompensation for the shape-of the H8 and either of the cams may beselectedas to shape independently of the other.

To increase the space for swinging movement of the downwardly extendingportions of the toe rest, arm and heel post, the link so is cut awayalong the edges of its side flanges and that portion of the cord M lnearest the toe rest is defiected towards the other stretch of cordextending downwardly from the pulley Mil. Between the flanges of thelink 59 there are arranged three cord deflecting guide pulleys I652about which. the cord passes. These pulleys are moun ed near the lowerend of the link 50 and since they move with the link cause no change inthe lengthwise position of the cord as the linksv #18 and 50 move withrelation to each other. To direct the cord [it in accurate alignmentwith one of the pulleys I50 at the left, a small idler pulley I53 ismounted on the shaft 56.

In the jack of the prior patents, the jack actuating pulley in the jackframe for rotating the cam, corresponding to the present cam I52, hassecured to it a split block fitting a slot in the pulley carried by theactuating shaft. To clamp the halves of the split block against thecord, in the patented jack, a screw is inserted in the block axially ofthe pulley with its head accessible from one side of the pulley. Due tothe arrangement and construction of the jack frame and supportingstructure in the present jack, it is difiicult to employ a split blockin which the cord is clamped by a screw so located. Accordingly, in thepresent illustrated jack, a cord clamping block I6 3, illustrated inFig. 1%, is employed. This block is formed in a single piece with endnotches, one of which fits a rib on the hub of the pulley Mil to holdthe block on the pulley by the tension on the cord and the other ofwhich receives the cord [44. The cord receiving notch is enlarged toform a circular opening and threaded for a cord clamping set screw m6,the slotted driver engaging end of which faces radially from the axis ofthe actuating cam, thus rendering the set screw easily accessiblebetween the flanges of the jack frame for clamping and unclamping thecord. To prevent the set screw 56 from cutting the cable, an I-shapedclamp bar IE7 is interposed between the end of the set screw and thecable, the under surface of the clamp bar being grooved to fit thecable. The enlarged ends of the clamp bar extend outside the notch inthe clamping block Hi l to prevent lengthwise displacement of the bar inthe notch.

The chute T8 in the present jack for guiding and clamping the shoe inplace on the toe rest instead of being formed at its toe engaging endwith cut-out portions to clear a pair of toe clamps as in the jack ofthe Patent No. 2,252,325, above referred to, is in the form of arectangular plate bent into an arcuate trough shape extending lengthwiseof the shoe on the jack with a transverse curvature less than thetransverse curvature of the largest size of shoe intended to be operatedupon. The operation of the lasting devices in the present machine issuch that a shoe in which the upper is temporarily attached at the toeby means of three tacks I80 (see Fig. 13) may be applied to the troughwithout the use of any special toe clamping devices. One of the tacksI89 is inserted at the tip of the shoe toe and two others are driven ateither side of the toe approximately in line with the toe cap. Shoes arecommonly prepared for lasting in this way and the arrangement of the,tacksfcauses the upper to bulge between; the tacks with projecting earsm2, Theears' of the upper, when. the, toe

of the shoe is applied to the shoe, engagethe plate are bent downwardlysomewhat; to avoid 1 injury of the upper, particularly when theoperation on the, shoe .is completed and the shoe is. withdrawn.

To steady the heel end of the. shoe against rocking movement about itslengthwise. axis, the last pin M of the present. jack is formed with atransverse diameterto fit closely within a stand ard sized ferruleforming the last pin hole. of the last i l, as indicated in;Fig. 13.Since the. last pin is. arranged to. slide. only in a vertical direc i non the heel post, it would be impossible to raise or lower the toe ofthe shoe into proper relation to thev toe end gage if the last pin 16was of uniform diameter fitting the last pin hole in the last.

To enable the toe of the shoe tov be raised or lowered about atransverse axis, while still preventing rocking movement about alengthwise aXis, the surfaces of the last pin facing theme and heel endsof the last are flattened and undercut along opposite sides in line withthe lengthwise dimensions of the last and particularly as indicated atI82 on the upper end at the heel side; of the last pin and as at I84.onthe lower end at the toe side of the last pin. These undercutportionsenable the toe of the shoe to be raised or lowered a suflicient amountto bring the toe of the shoe against the shoulder on the end gagevwithout obstruction as the heel post approaches the toe rest during theshoe clamping action of the jack; When thus shaped, the uncut portionsof the last pin secure the last without. substantial freedom of rockingmovement transversely to'the lengthwise dimensionof, the; shoe or aboutits lengthwise aXis.

The nature and scope of the invention having been indicated and aparticular embodiment,

thereof having been described, what is claimedisr 1. In a machineformanufacturing shoes hav-' ing devices for performing an operationprogressively along the uptu'rned bottom of a shoe one last, in whichtheupper leg of the shoe extendsdownwardly substantially below the last,the combination with a jack having a toe rest and A a'heel post formedwith downwardly extending portions spaced to, provide an opening for theleg and acting to clamp theshoe in position by relativemovement of theheel post towards thetoe rest. a frame. on which the jack is mounted forrocking movement-about. an axis extending the shoe; bottom lengthwise ofthe shoe:-

close to; as the operation is transferred along the shoe,- a supportingstructure for thejack frame, and a pivotal connection between the; frameand'sup porting structure at a point on the frame substantially abovethe; lowermost spaced portions of the toe rest and-heel post to enabletheshoe to swing about an axisextending transversely'to the length ofthe shoe.

2. In a machine for manufacturing shoes hav mg devices for performingan, operation progres-J sively. along the upturned bottom of a shoefona: last, in which the upper leg ofthe shoe extends; downwardly.substantially below the last, the.

combination with a jackhaving; a toerest andl a heel post formed withdownwardly extending portions spaced to provide an opening for the legand acting to clamp the shoe in position by relative movement of theheel post towards the toe rest, a frame on which the jack is mounted forrocking movement about an axis extending close to the shoe bottomlengthwise of the shoe as the operation is transferred along the shoe, asupporting structure for the jack frame comprising a base and a pivotalconnection between the frame and supporting structure extendingtransversely of the shoe at a point on the frame substantially above thelowermost spaced portions of the toe rest and heel post, and means forcausing the frame to swing about its point of transverse pivotalconnection with the supporting structure as the position of the framelengthwise of the shoe is changed with the base held stationary.

3. In a machine for manufacturing shoes hav-- ing devices for performingan operation progressively along the upturned bottom of a shoe on alast, in which the upper leg of the shoe extends downwardlysubstantially below the last, the combination with a jack having a toerest and a heel post formed with downwardly extending portions spaced toprovide an opening for the leg and acting to clamp the shoe in positionby relative movement of the heel post towards the toe rest, a frame onwhich the jack is mounted for rocking movement about an axis extendingclose to the shoe bottom lengthwise of the shoe as the operation istransferred along the shoe, 9. supportingstructure for the jack framecomprising a base and a pivotal connection between the frame andsupporting structure extending transversely of the shoe at a point onthe frame substantially above the lowermost spaced portions of the toerest and heel post, and means for moving the frame on its transversepivotal connection to hold it substantially in the same angular relationto the base as the shoeis moved lengthwise as the operation on the shoeprogresses.

4. In a machine for manufacturing shoes having devices for erforming anoperation progressively along the upturned bottom of a shoe on a last,in which the upper leg of the shoe extends downwardly substantiallybelow the last, the combination with a jack having a toe rest and a heelpost formed with downwardly extending portions spaced to provide anopening for the leg and acting to clamp the shoe in position by relativemovement of the heel post towards the toe rest, a frame on which thejack is mounted for rocking movement about an axis extending close tothe shoe bottom lengthwise of the shoe as the operation is transferredalong the shoe, a supporting structure for the jack frame comprising apair of interconnected links disposed at an an le to each other betweenthe frame and base, means acting on one of said links to exert an upwardpressure on the jack, and a feed lever connected to the frame to causethe other of said links to move in the direction of feed as theoperation on the shoe progresses.

5. In a machine for manufacturing shoes having devices for performing anoperation progressively along the upturned bottom of a shoe on a last,in which the upper leg of the shoe extends downwardly substantiallybelow the last, the combination with a jack having a toe rest and a heelpost, formed with downwardly extending portions spaced to provide anopening for the leg and acting to clamp the shoe in position by relativemovement. of the heel post towards the toe rest,'a frame on whichtliejack is mounted for rocking movement about an axis extending close tothe shoe bottom lengthwise of the shoe as the-operation is transferredalong the shoe, a supporting structure for the jack frame comprising apair of interconnected links disposed at an angle to each other betweenthe frame and base, means acting on one of said links to exert an upwardpressure on the jack, a feed lever connected to the frame to cause theother of said links to move in the direction of feed as the operation onthe shoe progresses, and means for holding the frame in substantiallythe same angular relation to the base in all positions of the feedlever.

6. In a machine for manufacturing shoes having devices for performing anoperation progres sively along the upturned bottom of a shoe on a last,the combination with a jack provided with a toe rest and a heel postacting to clamp the shoe in position by relative movement of the heelpost towards the toe rest, a supporting frame for the jack, a pivot onthe frame for the toe rest end of the jack having its axis close to theshoe bottom and extending lengthwise of the shoe. and means on the toerestv and on the jack frame spaced from the pivot for exerting an upwardpressure on the heel post end of the jack and for preventing separationof .the jack from the frame.

In a machine for manufacturing shoes having devices for performing anoperation progressively along the upturned bottom of a shoe on a last,the combination with a jack provided with a toe rest and a heel postacting to clamp the shoe in position by relative movement of the heelpost towards the toe rest, a supporting frame for the jack, a pivot onthe frame for the toe rest end of the jack having its axis close to theshoe bottom and extending lengthwise of the shoe, a mounting on the jackalong which the pivot is movable transversely to the pivot, thrust meanson the frame and the toe rest end of the jack spaced from the pivot forexerting an upward pressure on the heel post end of the jack inpositions of the jack relative to the frame, and

retaining means between the thrust means and pivot for preventingseparation of the jack from the frame.

8. In a machine for manufacturing shoes hav nected to the jack frame, apivot for the jaclr on the frame having its axis close to the shoebottom extending lengthwise of the boot or shoe, means for shifting theposition of the jack transversely with relation to said lengthwise axis,and a rotatable shaft mounted concentrically to pivotal connectionbetween the jack frame and link for actuating said shifting means.

9. In a machine for manufacturing shoes having devices for performing anoperation progressively along the upturned bottom of a shoe on a last,the combination with a jack provided with a toe rest and a heel postacting to clamp the shoe in position by relative movement of the heelpost towards the toe rest, a supporting frame for the jack, a supportinglink pivotally connected to the jack frame, a pivot for the jack on theframe having its axis close to the shoe bottom extending lengthwise ofthe boot or shoe, a supporting member pivotally connected to thesupporting link to enable the link to move about axis transverse to thelength of the shoe and substantially parallel to the shoe bottom thereofwhile the operation is being transferred along the bottom, a cam mountedto rotate concentrically of the point of pivotal connection of the jackframe and link for shifting the position of the jack on the frametransversely of the length of the shoe, a pulley mounted concentricallyto the point of pivotal connection of the link and supporting member,and a cord extending over said pulley for rotating said cam,

10. In a machine for manufacturing shoes having devices for performingan operation progreseively along the upturned bottom of a shoe on alast, the combination with a jack provided with a toe rest and a heelpost acting to clamp the shoe in position by relative movement of theheel post towards the toe rest, a supporting frame for the jack, asupporting link pivotally connected to the jack frame, a pivot for thejack on the frame having its axis close to the shoe bottom extendinglengthwise of the boot or shoe, asecond supporting link pivotallyconnected to the first-mentioned supporting link to enable the first-mentioned link to move about an axis transverse to the length of the shoeand substantially parallel to the shoe bottom while the operation isbeing transferred along the bottom, a jack base to which thesecond-mentioned link is pivotally connected and movable about an axisparallel to the axis of the pivotal connection between the is, arotatable shaft concentric to the pivotal 'connection between thefirst-mentioned link and the jack frame to actuate the jack, pulleysmounted concentrically with all of said parallel axes, and a cordextending over said pulleys for rotating said shaft.

11. In a machine for manufacturing shoes having devices for performingan operation on the upturned bottom of a shoe on a last, the combinationwith a jack provided with a toe rest and a heel post acting to clamp theshoe in position by relative movement of the heel post towards the toerest, a jack supporting frame on which the jack is movable, mechanismacting when thrown into operation to clamp a shoe on the toe rest F andheel post, and mechanism for resetting the shoe clamping mechanismcomprising a jack opening bar on the jack, a pawl on the jack mounted toswing towards and from the jack opening bar, a jack actuating lever onthe frame,

connections on the frame for actuating the lever to cause the pawl tomove against the jack opening bar, and a releasing member fordisengaging the pawl from the bar and actuating lever.

12. In a machine for manufacturing shoes having devices for performingan operation on the upturned bottom of a shoe on a last, the combinationwith a jack provided with a toe rest and a heel post acting to clamp theshoe in position by relative movement of the heel post towards the toerest, a jack supporting frame on which the jack is movable, mechanismacting when thrown into operation to clamp a shoe on the toe rest andheel post, and mechanism for resetting the shoe clamping mechanismcomprising a jack opening bar on the jack for separating the toe'restfrom the heel post, a pawl on the jack mounted to swing towards and fromthe jack opening bar and to move bodily against the bar to open thejack, a

on the frame for actuating the lever against the bar, and an arm on thejack for disengaging the pawl from the lever to release thev jackopening bar.

13. In a machine for manufacturing shoes hav ing devices for performingan operation on the upturned bottom of a shoe on a last, the combinagtion with a jack provided with a toe rest and aheel post acting to clampthe shoe in position by relative movement of the heel post towardst'netoe rest, a jack supporting frame on which the jack is movable,mechanism acting when thrown into operation to clamp a shoe on the toerest and heel post, and mechanism for resetting the shoe clampingmechanism comprising a jack opening bar on the jack for separating thetoe rest from the heel post, a pawl on the jack mounted to swing towardsand from the jack opening bar and to move bodily against the bar to openthe jack, a jack actuating lever on the frame, connections on the framefor actuating the lever against the bar, an arm on the jack for i byrelative movement of the heel post towards the toe rest, yielding meanstending to move the heel post towards the toe rest, and connections inaddition to the yielding means between'the heel post and the toe restfor increasing the force exerted by the yielding means as they areseparated from each other.

15. In a machine for manufacturing shoes hav ing devices for performingan operation on the upturned bottom of a shoe on a last in which theupper leg of the shoe extends downwardly substantially below the last,the combination with a jack having a toe rest and a heel post formedwith downwardly extending portions spaced to provide an opening for theleg and hingedly joined together along their lower portions to clamp theshoe in position by relative movement f of the heel post towards the toerest, a link pivotally connected to the heel post adjacent the joint ofthe hinge between the heel post and toe rest, a lever on the toe resthaving a pivotal connection with the link and acting with the link as atoggle to separate the heel post from the toe rest when moved towardsaligned position, and a spring connected with the lever for swinging thelever in a direction to draw the heel post towards the toe rest.

16. In a, machine for manufacturing shoes having devices for performingan operation progressively along the upturned bottom of a shoe on alast, the combination with a jack provided with a toe rest and a heelpost acting to clamp the shoe in position by relative movement of theheel post towards the toe rest, a shaft for actuating the jack, a pulleyhaving a radially disposed notch on the shaft, a cord for rotating thepulley,. a clamp block on the cord shaped to fit the notch in thepulley, and a set the cord.

17. In a machine for manufacturing shoes hav- Q ing devices forperforming an operation progresjack actuating lever on the frame,connections 75 sively along the upturned bottom of a shoe on a boot orshoe 7 screw disposed in the block I radially of the pulley for securingthe block to last, the combination with a jack provided with a toe restand a heel postacting to clamp the shoe in position by relative movementof the heel post towards the toe rest, a shaft for actuating the jack, acrank on the shaft, a pitman on the crank,

a pivoted guideway for the pitman, and operative connections between theguideway and the jack for actuating the jack.

18. In a machine for manufacturing shoes having devices for performingan operation progressively along the upturned bottom of a shoe on alast, in which the upper leg of the shoe extends downwardlysubstantially below the last, the combination with a jack having a toerest and a heel post formed with downwardly extending portions spaced toprovide an opening for-the leg and acting to clamp the shoe in positionby relative movement of the heel post towards the toe rest, a frame onwhich the jack is mounted for rocking movement about an axis extendingclose to the shoe bottom lengthwise of the shoe as the operation istransferred along the shoe, a sup porting structure for the jack framecomprising a base and a pair of interconnected links disposed at anangle to each other between the jack frame and the base, a rotatableshaft in the frame for actuating the jack, a cord extending parallelwith both said links to rotate the shaft, and guide pulleyson one of thelinks for deflecting the cord to provide space for rocking movement ofthe jack on the frame.

19. In a machine for manufacturing shoes having devices for performingan operation progressively along the upturned bottom of a shoe on alast, the combination with a jack, a supporting frame for the jack and asupporting structure for the jack frame comprising a jack base and apair of interconnected links disposed at an angle to each other betweenthe frame and the base, connecting rods extending between the frame andbase to hold the frame and base in the same angular relation with eachother, means acting on one of the links to exert an upward pressure onthe jack, and a feed lever connected to the frame to cause the frame tomove in the direction of feed as the operation on the shoe progresses.

20. In a machine for manufacturing shoes having devices for performingan operation progressively along the upturned bottom of a shoe on alast, the combination with a jack, a supporting frame for the jack and asupporting structure for the jack frame comprising a lack base and apair of interconnected links disposed at an angle to each other betweenthe frame and the base, connecting rods extending between the frame andbase to hold the frame and base in the same angular relation with eachother, means acting on one of the links to exert an upward pressure onthe jack, a feed lever connected to the frame to cause the frame to movein the direction of feed as the operation on the shoe progresses, andmeans for changing the angular position of the base as the operationprogresses to present the shoe properly to the operating devices.

21. In a machine for manufacturing shoes having devices for performingan operation progressively along the upturned bottom of a shoe on alast, the combination with a jack, a supporting frame for the jack and asupporting structure for the jack frame comprising a jack base, a linkconnected to the frame and a rod pivotally connected with the frame at adistance from the link the jack through said link, a feed leverconnectedto the frameto cause the frame to move in the direction of feed, andmeans for changing the angular position of the base as the operationprogresses to present theshoe properly to the operating devices.

extending parallel to said link to hold the frame and base in the sameangular relation with each other, means for exerting an upward pressureon .22. A machine for use in the manufacture of shoes having, incombination, devices for performing an operation progressively along theupturned bottom of a shoe on a last, a shoe supporting jack, aframe onwhich the jack is movable about a pivotal axis transverse to the lengthof and substantially parallel to the bottom surface of a shoe on thejack, a jack base and a pair of jack frame su porting links one of whichis pivoted to swing on the base with a common pivot between the links,the axis of which is parallel to a pivot between the other of said linkson the frame, and means for maintaining the frame and the base in thesame angular relation to each other as the position of the frame ischanged as the operation on the shoe progresses.

23. A machine for use in the manufacture of shoes'having, incombination, devices for performing an operation progressively along theupturned bottom of a shoe on a last, a shoe supporting jack, a frame onwhich the jack is movable about a pivotal axis transverse to the lengthof and substantially parallel to the bottom surface of a shoe on thejack, a jack base and a pair of jack frame supporting links one of whichis pivoted to swing on the base with a common pivot between the links,the axis of which is parallel to a pivot between the other of said linkson the frame, and connections between the base and frame comprisingconnecting rods and a lever fulcrumed concentrically to the common pivotbetween the supporting links.

In a jack having a toe rest and a relatively movable heel post for ashoe on a last, in which the upper or leg portion extends substantiallybeyond the last, acting to secure the shoe by movement of the heel posttowards the toe rest and to locate the toe of the shoe in predeterminedrelation to the toe rest, the combination with a hinge between the toerest arm and the eel post at the lowermost portions of the toe rest andheel post and a link curving around the space between the toe rest andheel post for drawing the heel post towards the toe rest with a shoeclamping pressure.

25. In a machine for manufacturing shoes having devices for performingan operation on the upturned bottom of a shoe on a last, the combinationwith a jack provided with a toe rest and a heel post acting to clamp theshoe in position by relative movement of the heel post towards the toerest, a jack supporting frame on which the jack is movable, mechanismacting when thrown into operation to clamp a shoe on the toe rest andheel post, and mechanism for resettin the shoe clamping mechanismcomprising a jack opening bar on the jack for separating, the toe restfrom the heel post, a jack actuating lever on the frame, a pawl formedwith a cam surface and a ledge on one end, and a lever on the jack forpivotally supporting the pawl in a position with relation to the jackactuating lever to cause the jack actuating lever first to engage thecam surface on the pawl to swing the pawl about its pivot on itssupporting lever and then to engage the ledge and move the pawl bodilyagainst the jack opening bar.

26. In a machine for manufacturing shoes having devices for performingan operation on prising a jack opening bar on the jack for separatingthe toe rest, from the heel post, a jack actuating lever on the frame, apawl formed with resetting the shoe clamping mechanism coma cam surfaceand a ledge on one end, a lever on the jack for pivotally supporting thepawl in a position with relation to the jack actuating lever to causethe jack actuating lever first to engage the cam surface on the pawl toswing the pawl about its pivot on its supporting lever and then toengage the ledge and move the pawl bodily against the jack opening bar,a toe supporting and clamping chute on the toe rest, and connectionsbetween the pawl supporting lever and the toe clamping chute forretracting the chute when the pawl is moved bodily againstthe jackopening bar.

'27. In a machine for manufacturing shoes having devices for performingan operation progressively along the upturned bottom of a shoe on a lastin which theupper leg of the shoe extends downwardly substantially belowthe last, the combination with a jack having a toerest and a heel postformed with downwardly eX- tending portions spaced to provide an openingfor the shoe leg and acting to clamp the shoe in position by relativemovement of the heel post towards the toe rest, a supporting frame onwhich the jack is mounted for rocking movement about, an axis extendingclose to the shoe bottom lengthwise of the shoe as the operation istransferred along the shoe bottom and a supporting structure for thejack frame comprising a base, a pair of interconnected links disposed atan angle to each other between the frame and base, a rotatable shaft inthe frame for actuating the jack, a pulley mounted for rotationconcentric with the point of interconnection between the links, a cordextending from the rotatable shaft and surrounding the pulley, and guidepulleys between the shaft and the first-mentioned pulley for'deflectingthe cord to provide space for swinging movement of the jack about itspivot on the frame.

28. In a. machine for manufacturing shoes having devices for performingan operation on the upturned bottom of a shoe on a last, the combinationwith a jack provided with a toe rest and a heel post acting to clamp theshoe in position by relative movement of the heel post towards the toerest, a shouldered toe end gage on the toe rest for locating the shoelengthwise and heightwise on the jack. and a chute on the toe restarranged to guide the shoe against the shoulder on the end gage and tosecure the toe of the shoe against lateral movement on the toe rest whenthe heel post and toe rest are moved towards each other with a shoeclamping force.

29. In a machine for manufacturing shoes having devices for performingan operation on the upturned bottom of a shoe on a last, the combinationwith a jack provided with a toe rest and a heel post acting to clamp theshoe in position by relative movement of the heel post towards the toerest, a shouldered toe end gage 'on the toe vrest for locating the shoelengthwise andheightwise on the jacln'an arcuate chute, the trough ofwhich extends lengthwise of the shoe to bring the last supported shoeupper against the end gage,'and means for actuating the chute yieldinglyagainst the upper to bring the tread surface of the shoe against theshoulder on the end gage. Y i- 1 30. In a machine for manufacturingshoes having devices for performing an operation on the upturned bottomof a shoe on a last, the combination with a jack provided with a toerest and.

a heel post acting to clamp the shoe in position by relative movement ofthe heel post towards the toe rest, a shouldered toe end'gage on'the toerest for locating the shoe lengthwise and height wise on the jack, anarcuate chute; the trough of which extends lengthwise of the shoe tobring the last supported shoe upper against the end gage,

means for actuating the chute yieldingly against the upper to bring theshoe against the shoulder on the end gage, andmea'ns for locking thechute against the upper during clamping action of the jack.-

ing devices for performing an operation on the upturned bottom of a shoeon a last, the combination with a jack provided with a toe rest and aheel post acting to clamp the shoe in posi- I tion by relative movementof the heel post t0- wards the toe rest, a chute on the toe rest arraned to engage the last supported shoe upper, a toe endgage on the toerest for locating the tread surface of the shoe heightwise of the shoe,and means for raising the chute to bring the tread surface of the shoeagainst thetoe gaged uring lengthwise of the shoe, yielding meansfor'raising the chute to bring the tread surface of the shoe against thetoe gage, and means actuated by lengthwise movement of the shoe againstthe toe gage to unlock the chute duringclampingaction' of the jack andto lock the chute in raised positionfas a result of pressure on the toerest exerted in clamping the shoe.

33. In a machine for manufacturing shoes having lasting devices actingon the upturned bottom of a shoe, the upper of which is'loosely sup--ported on a last and temporarily secured thereto by at least threefastenings, one of which is inserted at the tip of the toe and two ofwhich are inserted at either side of the toe to form the upper into apair of projecting ears at either side of the shoe toe tip, thecombination withfa jack provided with a toe rest and a heel post actingto clamp the shoe in position by relative movement of the heel posttowards the toe rest, and anine clined chute on the toe restarranged'for engagement with the projecting ears of the upper to causethe last supported upper to be aligned with the trough of the chute asthe heel post and toe rest are moved towards eachother during clampingaction of the jack. 7

34. In a machine for manufacturing shoes hav'-' ing lasting devicesacting on the upturned bottom of a shoe, the upper of which is looselysupported 31. In a machine formanufacturingshoes havon a last andtemporarily secured thereto by at least three fastenings, one of whichis inserted at the tip of the toe and two of which are inserted ateither side of the toe to form the upper into a pair of projecting earsat either side of the shoe toe tip, the combination with a jack providedwith a toe rest and a heel post acting to clamp the shoe in position byrelativ movement of the heel post towards the toe rest, and an inclinedarcuate chute, the trough of which extends lengthwise of the shoe, witha transverse curvature less than the transverse curvature of the largestsize of shoe operated upon for engaging the projecting ears of the upperto guide the toe of the shoe into the central trough of the chute duringclamping action of the jack.

35. In a machine for manufacturing shoes having lasting devices actingon the upturned bottom of a shoe, the upper of which is looselysupported on a last and temporarily secured thereto by at least threefastenings, one of which is inserted at the tip of the toe and two ofwhich are inserted at either side of the toe to form the upper into apair of projecting ears at either side of the shoe toe tip, thecombination with a jack provided with a toe rest and a heel post actingto clamp the shoe in position by relative movement of the heel posttowards the toe rest, an inclined chute on the toe rest arranged forengagement with the projecting ears of the u per to cause the lastsupported upper to be aligned with the trough of the chute as the heelpost and toe rest are moved towards each other during clamping action ofthe jack, and a last pin on the heel post constructed to enable the toeof the shoe to move he ghtwise of the last while holding the shoeagainst substantial rotation about its lengthwise axis.

36. In a machine for manufacturing shoes having devices for performingan operation on the upturned bottom of a shoe on a last, the combinationwith a jack provided with a toe rest and a heel post acting to clamp theshoe in position by relative movement of the heel post towards the toerest, and a last pin having a dimension transverse to the last length ofa size to fit closely within the pin hole of the last and a dimensionlengthwise of the last substantially less than the transverse dimensionto enable the shoe to rock about a transverse axis while being locatedon the jack while holding the shoe against substantial rotation about alengthwise axis.

37. A shoe supporting jack having, in combination, a toe rest and a heelpost acting to clamp a shoe in position by relative movement of the heelpost towards the toe rest, and a last pin secured to the heel posthaving undercut portions to cause the pin to grip the last within thelast pin hole with substantial pressures against those sides of the pinhole nearest the sides of a last and to clear those sides of the pinhole in alignment with the lengthwise dimension of the last.

38. In a machine for manufacturing shoes having devices for performingan operation on the upturned bottom of a shoe on a last, the combinationwith a jack provided with a toe rest and a heel post acting to clamp theshoe in position by relative movement of the heel post towards the toerest, a chute on the toe rest, means for actuating the chute against theupper of the shoe to secure the toe of the shoe against lateral movementon the toe rest when the heel post and toe rest are moved towards eachother with a clamping force, and mechanism for retracting the chute fromits actuated position.

39. In a machine for manufacturing shoes having devices for performingan operation on the upturned bottom of a shoe on a last, the combinationwith a jack provided with a toe rest and a heel post acting to clamp thshoe in position by relative movement of the heel post towards the toerest, a chute on the toe rest arranged to engage the last supported shoeupper, a toe end gage on the toe rest for locating the tread surface ofthe shoe heightwise of the shoe, means for raising the chute to bringthe tread surface of the shoe against the toe gage during clampingaction, and a last pin on the heel post formed with a diametertransverse to the shoe length to fit a circular pin hole in the last andprovided with a cutaway surface to enable the toe of the shoe to beraised and lowered with the chute while holding the shoe againstsubstantial rocking movement about an axis extending lengthwise of theshoe.

40. In a machine for manufacturing shoes having devices for performingan operation on the upturned bottom of a shoe mounted on the last, thecombination with a jack provided with a toe rest and a heel post actingto clamp the shoe in position by relative movement of the heel Dosttowards the toe rest, and a last pin on the heel post formed with adiameter transverse to the shoe length to fit a circular pin hole in thelast and provided with an undercut portion to enable the toe of the shoeto be raised and lowered while holding the shoe against substantialrocking movement about an axis extending lengthwise of the shoe.

41. In a machine for manufacturing shoes having devices for performingan operation on a shoe, the combination with a shoe supporting jack andmechanism for actuating the jack comprising a cord, a slotted pulleyabout which the cord passes, a removable cord clamping block securedwithin the slot of the pulley by the tension of th cord, and a set screwfor clamping the cord in the block arranged radially of the pulley whenthe block is in the slot.

42. In a machine for manufacturing shoes having devices for performingan operation on a shoe, the combination with a shoe supporting jack andmechanism for actuating thejack comprising a cord, a slotted pulleyabout which the cord passes, a notched cord clamping block removablysecured within the slot of the pulley by the tension of the cord, 2. setscrew arranged radially of the pulley when the block is in the slot andan I- shaped clamp bar for the cord in the notch of the block with theends of the I outside the notch acting on the bar to prevent lengthwisedisplacement in the notch.

ROBERT H. LAWSON.

